Reinforcing structure, automobile body assembly and automobile

Abstract

The utility model relates to a reinforcing structure, an automobile body assembly and an automobile. The reinforcing structure comprises a through beam, a first mounting pipe, a first diagonal bracing pipe, a second mounting pipe and a second diagonal bracing pipe, wherein each of the through beam, the first mounting pipe, the first diagonal bracing pipe, the second mounting pipe and the second diagonal bracing pipe comprises a pipe body and at least two intercrossed internal connecting plates positioned in the pipe body; the first mounting pipe is located at the first end, and the extending direction of the first mounting pipe intersects with the first direction; the first diagonal bracing pipe is fixed to the through beam and fixed to the first mounting pipe; the second mounting pipe is located at the second end, and the extending direction of the second mounting pipe intersects with the first direction; the second diagonal bracing tube is fixed to the through beam and to the second mounting tube. The reinforcing structure is favorable for improving the torsional rigidity of the vehicle body.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle components, and particularly to a reinforcing structure, a vehicle body assembly, and an automobile. Background Art

[0002] An automobile body is mainly composed of various complex beam structures and is equipped with various external devices.

[0003] In a new energy vehicle, a battery pack can be connected to the vehicle body. The size of the battery pack is relatively small, while the width dimension of the vehicle body is relatively large. Such a structural drop is extremely likely to cause insufficient body stiffness, and the body stiffness may not meet the design requirements under torsional conditions.

[0004] A common way to increase torsional stiffness is to increase the thickness of the sheet metal, but such a method has limited effect on improving stiffness, and when used in the process of vehicle model development, the amount of modification to the parts carried forward in the vehicle model development is relatively large. Summary of the Utility Model

[0005] Based on this, it is necessary to provide a reinforcing structure, a vehicle body assembly, and an automobile for the problem of insufficient torsional stiffness of the vehicle body.

[0006] An embodiment of the present disclosure provides a reinforcing structure, which is used to be connected to a vehicle body. The reinforcing structure includes: a through beam, a first mounting tube, a first diagonal brace tube, a second mounting tube, and a second diagonal brace tube. The through beam, the first mounting tube, the first diagonal brace tube, the second mounting tube, and the second diagonal brace tube each include a tube body and at least two inner connecting plates that intersect with each other inside the tube body: the through beam has a first end and a second end facing away from each other along a first direction; the first mounting tube is located at the first end, and the extending direction of the first mounting tube intersects the first direction; the first diagonal brace tube is fixed to the through beam and fixed to the first mounting tube; the second mounting tube is located at the second end, and the extending direction of the second mounting tube intersects the first direction; the second diagonal brace tube is fixed to the through beam and fixed to the second mounting tube.

[0007] By setting the through beam with an inner connection structure as the main anti-torsion structure path, it is beneficial to improve the torsional stiffness of the vehicle body and ensure the vehicle body performance; by setting the first mounting tube and the second mounting tube, it helps to ensure that the reinforcing structure is stably connected to the vehicle body as a whole; by setting the first diagonal brace tube and the second diagonal brace tube, it helps to ensure the stiffness of the reinforcing structure itself, and thus helps to improve the torsional stiffness of the vehicle body.

[0008] The reinforcing structure of the embodiment of the present disclosure has at least one of the following beneficial effects:

[0009] Under the condition of not having to make large-scale changes to the original structural design of the vehicle body, the torsional stiffness of the vehicle body is improved, and thus the vehicle body performance affected by the torsional stiffness is improved;

[0010] The contribution of the reinforcement structure to the improvement of the body torsional stiffness is obvious, and the cost performance is relatively high;

[0011] The process feasibility is relatively high and the comprehensive cost is relatively low.

[0012] In some embodiments, the tube body is a square tube, and at least two inner connecting plates include two inner connecting plates respectively arranged along the diagonal of the square tube.

[0013] With such a setting, the axial torsional resistance performance of each component of the reinforcement structure is excellent, the reinforcement structure has high strength and good torsional resistance performance; in addition, the outer side of the square tube is easy to realize external connection.

[0014] In some embodiments, the through beam, the first installation tube, the first diagonal brace tube, the second installation tube and the second diagonal brace tube are all aluminum profiles.

[0015] With such a setting, the reinforcement structure is light in weight, can provide sufficient stiffness, and the performance of each part of the reinforcement structure is relatively balanced. In addition, it is beneficial to the unified manufacturing of each component.

[0016] In some embodiments, the reinforcement structure further includes a third installation tube and a third diagonal brace tube. Each of the third installation tube and the third diagonal brace tube includes a tube body and at least two inner connecting plates that intersect with each other inside the tube body; the third installation tube is located at the second end, and the third installation tube and the second installation tube are located on both sides of the through beam along a second direction perpendicular to the first direction, and the third diagonal brace tube is fixed to the through beam and fixed to the third installation tube.

[0017] With such a setting, the torsional resistance performance of the reinforcement structure is improved.

[0018] In some embodiments, among the second installation tube and the third installation tube, the second installation tube and the first installation tube are located on the same side of the through beam, and the third installation tube is longer than the second installation tube along the second direction; the third diagonal brace tube is connected to the through beam, and the connection position of the third diagonal brace tube is between the first diagonal brace tube and the second diagonal brace tube.

[0019] With such a setting, the structure of the through beam is stable, the force is balanced, which is beneficial to ensuring the torsional resistance performance of the reinforcement structure.

[0020] In some embodiments, the second installation tube and the third installation tube are two sections of the same profile.

[0021] With such a setting, the reinforcement structure has high strength and good stability.

[0022] Exemplarily, the second installation tube or / and the third installation tube are detachably connected to the vehicle body through screw holes; the first installation tube is detachably connected to the vehicle body through other screw holes.

[0023] With such a setting, the reinforcement structure is easy to install, can be easily added to the vehicle body; and it is also easy to maintain and repair the vehicle body and its external components.

[0024] In some embodiments, the side wall of the first mounting pipe is butted against the first end. The first mounting pipe includes two sections respectively protruding from the through beam, and the section provided with the first diagonal bracing pipe is longer; the side wall of the second mounting pipe is butted against the second end.

[0025] With such an arrangement, the connection strength of each component of the reinforcement structure is good, the first mounting pipe can remain stable, and the through beam can effectively resist torsion.

[0026] In some embodiments, the cross-sectional area of the through beam is larger than the cross-sectional areas of the first mounting pipe, the first diagonal bracing pipe, the second mounting pipe, and the second diagonal bracing pipe respectively; both the first mounting pipe and the second mounting pipe extend along a second direction perpendicular to the first direction; along a third direction perpendicular to the first direction and perpendicular to the second direction, the through beam, the first mounting pipe, the first diagonal bracing pipe, the second mounting pipe, and the second diagonal bracing pipe have the same size and are flush.

[0027] With such an arrangement, the structural strength of the through beam is higher, and it is also convenient to connect it to other components.

[0028] Embodiments of the present disclosure also provide a vehicle body assembly, which includes: a vehicle body including a bottom and a first side portion and a second side portion connected to the bottom, the first side portion and the second side portion being spaced apart along a first direction; and the aforementioned reinforcement structure, the first mounting pipe being connected to the first side portion, and the second mounting pipe being connected to the second side portion.

[0029] The vehicle body assembly of the embodiments of the present disclosure has high torsional stiffness and does not need to make too much change to the vehicle body. The vehicle body assembly can be relatively light in weight. The vehicle body assembly has high cost performance.

[0030] Embodiments of the present disclosure also provide a vehicle, which includes the aforementioned vehicle body assembly.

[0031] The vehicle of the embodiments of the present disclosure performs well under torsional conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of the vehicle body assembly of the embodiments of the present disclosure;

[0033] Figure 2 is a structural schematic diagram of the reinforcement structure of the embodiments of the present disclosure;

[0034] Figure 3 is a cross-sectional schematic diagram of the through beam in the embodiments of the present disclosure;

[0035] Figure 4 is a schematic top view of the reinforcement structure of the embodiments of the present disclosure;

[0036] Figure 5Cross-sectional schematic view of the first installation pipe in the embodiments of the present disclosure;

[0037] Figure 6 Cross-sectional schematic view of the through beam in the embodiments of the present disclosure;

[0038] Figure 7 Cross-sectional schematic view of the through beam in the embodiments of the present disclosure;

[0039] Figure 8 Schematic structural block diagram of the vehicle in the embodiments of the present disclosure.

[0040] Explanation of reference numerals: 1, through beam; 110, first section; 120, second section; 101, first end; 102, second end; 2, first installation pipe; 3, first diagonal brace pipe; 4, second installation pipe; 401, screw hole; 5, second diagonal brace pipe; 6, third installation pipe; 7, third diagonal brace pipe;

[0041] 10, pipe body; 11, first wall panel; 12, second wall panel; 20, inner connecting plate;

[0042] 100, reinforcement structure; 200, vehicle body; 210, bottom; 211, cross beam; 212, small longitudinal beam; 220, first side part; 230, second side part; 300, vehicle body assembly; 400, battery pack; 500, vehicle. Detailed implementation manners

[0043] To make the above objects, features, and advantages of the embodiments of the present disclosure more apparent and understandable, the following describes the detailed implementation manners of the embodiments of the present disclosure in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the embodiments of the present disclosure. However, the embodiments of the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the embodiments of the present disclosure. Therefore, the embodiments of the present disclosure are not limited by the specific examples disclosed below.

[0044] In the description of the embodiments of the present disclosure, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "perpendicular", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present disclosure.

[0045] In the embodiments of the present disclosure, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0046] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. Exemplarily, the second installation pipe may also be referred to as the third installation pipe, and the third installation pipe may also be referred to as the second installation pipe. In the description of the embodiments of the present disclosure, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0047] In the embodiments of the present disclosure, unless otherwise clearly specified or limited, the terms "connected" and "coupled" etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a flexible connection, or a rigid connection along at least one direction; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be an intermediate medium while being directly connected, and it may also be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. The terms "installed", "arranged", "fixed" etc. can be understood in a broad sense as connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0048] As used herein, the terms "layer" and "region" refer to a portion of a material including a region having a certain thickness. The layer can extend horizontally, vertically, and / or along a conical surface. The layer can be a region of a uniform or non-uniform continuous structure, and the thickness perpendicular to the extending direction may not be greater than the thickness of the continuous structure. The layer can include multiple layers, which can be multiple stacked layers or multiple layers extending discretely. The shapes of various regions and layers in the drawings and their relative sizes and positional relationships are only exemplary, and may actually deviate due to manufacturing tolerances or technical limitations, and can be adjusted according to actual requirements.

[0049] Reference Figure 1 , Figure 1The body assembly according to an embodiment of the present disclosure is shown. In an exemplary embodiment, the body assembly 300 includes a body 200, and in order to improve the torsional stiffness of the body 200, a reinforcing structure 100 is added.

[0050] Exemplarily, the X-axis direction is the vehicle length direction or the front-rear direction, and the Y-axis direction is the vehicle width direction or the left-right direction. The body 200 includes a bottom 210, a first side portion 220, and a second side portion 230. The first side portion 220 and the second side portion 230 can each extend along the X-axis direction, and the two are spaced apart along a first direction, which can be parallel to the Y-axis direction, and then it is considered that the second direction can be parallel to the X-axis direction. The first side portion 220 and the second side portion 230 can be at the edge positions of the body 200, for example, both are sill beams. The bottom 210 is fixed to the first side portion 220 and fixed to the second side portion 230. The bottom 210 can include many components, such as a beam structure or a sheet metal structure, and the bottom 210 is also used to mount or accommodate external components.

[0051] Combined Figures 2 to 5 As shown, the reinforcing structure 100 provided in the embodiment of the present disclosure is used to connect to the body 200, for example, to connect between the first side portion 220 and the second side portion 230. Exemplarily, the reinforcing structure 100 includes: a through beam 1, a first mounting pipe 2, a first diagonal brace pipe 3, a second mounting pipe 4, and a second diagonal brace pipe 5. As Figure 3 and Figure 5 shown, each of the through beam 1, the first mounting pipe 2, the first diagonal brace pipe 3, the second mounting pipe 4, and the second diagonal brace pipe 5 includes a pipe body 10 and at least two internal connection plates 20 that intersect with each other inside the pipe body 10. The extending direction of the internal connection plate 20 is the same as that of the pipe body 10, and the edge of the internal connection plate 20 can be connected to the inner wall of the pipe body 10. The cross-sectional shape of the through beam 1 includes an intersecting shape, which is beneficial to improving its own axial torsional performance. The through beam 1 is the main torsional path between the two sides of the body 200. By setting the internal connection structure, it is beneficial to improve the torsional stiffness of the body 200 and ensure the performance of the body 200.

[0052] The through beam 1 has a first end 101 and a second end 102 that face away from each other along a first direction. Exemplarily, along the X-axis direction, Figure 1 the left side of the illustration of the through beam 1 in Figure 2 is referred to as the first side, and the right side is referred to as the second side; as Figure 2 shown, the lower left side of the illustration of the through beam 1 is referred to as the first side, and the upper right side is referred to as the second side. As

[0053] The first mounting pipe 2 is located at the first end 101, and the second mounting pipe 4 is located at the second end 102. The first mounting pipe 2 and the second mounting pipe 4 are arranged oppositely along the first direction, and both are used for connecting to the vehicle body 200. The first mounting pipe 2 is used for connecting to the first side portion 220, and the second mounting pipe 4 is used for connecting to the second side portion 230. Exemplarily, the outer side surface of the first mounting pipe 2 along the Y-axis direction is used to abut against the first side portion 220, and the outer side surface of the second mounting pipe 4 along the Y-axis direction is used to abut against the second side portion 230. The reinforcement structure 100 can transmit force better and can effectively improve the torsional strength of the vehicle body 200.

[0054] The first mounting pipe 2 can extend substantially along the second direction, for example, from the through beam 1 towards the first side of the through beam 1. The extending direction of the first mounting pipe 2 can be slightly deviated relative to the Y-axis direction to adapt to the first side portion 220. A first diagonal brace pipe 3 is provided at the first mounting pipe 2. The first diagonal brace pipe 3 is fixed to the through beam 1 and fixed to the first mounting pipe 2, and the three can form a triangular structure.

[0055] The second mounting pipe 4 can extend substantially along the second direction, for example, from the through beam 1 towards the first side or the second side of the through beam 1. The second mounting pipe 4 and the first mounting pipe 2 are located on the same side or opposite sides of the through beam 1; the two can be parallel or have a deviation in the YZ plane. A second diagonal brace pipe 5 can be provided at the second mounting pipe 4. The second diagonal brace pipe 5 is fixed to the through beam 1 and fixed to the second mounting pipe 4, and the three can form a triangular structure.

[0056] The first mounting pipe 2 and the second mounting pipe 4 are correspondingly connected to the first side portion 220 and the second side portion 230, which helps to ensure that the reinforcement structure 100 is stably connected to the vehicle body 200 as a whole. The first diagonal brace pipe 3 and the second diagonal brace pipe 5 support the first mounting pipe 2 and the second mounting pipe 4 based on the through beam 1, improving the stiffness of the reinforcement structure 100 itself, and thus helping to improve the torsional stiffness of the vehicle body 200.

[0057] In some embodiments, the first mounting pipe 2 and the second mounting pipe 4 can be respectively provided with screw holes 401 for being fixed to the vehicle body 200 by screws, enabling detachable connection. The reinforcement structure 100 of the present disclosure implementation manner can be installed at the front part of the vehicle body 200 or can also be installed at the rear part of the vehicle body 200. The installation position of the reinforcement structure 100 can be determined according to requirements. Without the need to largely modify the original structural design of the vehicle body 200, the reinforcement structure 100 can improve the torsional stiffness of the vehicle body 200, and thus improve the performance affected by the torsional stiffness. Exemplarily, the through beam 1 can also be provided with screw holes 401 to connect to the vehicle body 200.

[0058] The contribution of the reinforcement structure 100 to the improvement of the torsional stiffness of the vehicle body 200 is relatively obvious, and the cost performance is relatively high. In addition, the process feasibility of the reinforcement structure 100 is relatively high, and thus the comprehensive cost is relatively low.

[0059] In some embodiments, the reinforcement structure 100 further includes a third installation pipe 6 and a third diagonal bracing pipe 7. The third installation pipe 6 and the third diagonal bracing pipe 7 are similar to other components in the reinforcement structure 100, and each may include a pipe body 10 and at least two internal connection plates 20. Exemplarily, the third installation pipe 6 is located at the second end 102. The third installation pipe 6 and the second installation pipe 4 are located on both sides of the through beam 1, and the third installation pipe 6 may be located on the second side. A third diagonal bracing pipe 7 is provided at the third installation pipe 6. The third installation pipe 6 is fixed to the third diagonal bracing pipe 7, and the third diagonal bracing pipe 7 is fixed to the through beam 1. The third installation pipe 6 is supported by the third diagonal bracing pipe 7, and the torsional resistance performance of the reinforcement structure 100 is improved.

[0060] Exemplarily, among the third installation pipe 6 and the second installation pipe 4, the second installation pipe 4 and the first installation pipe 2 are located on the same side of the through beam 1. Refer to Figure 1 and Figure 4 , the third installation pipe 6 is longer than the second installation pipe 4 along the second direction, and the lengths of the second installation pipe 4 and the first installation pipe 2 may be substantially equivalent. The extended length of the third diagonal bracing pipe 7 may be longer than the extended length of the first diagonal bracing pipe 3 or the extended length of the second diagonal bracing pipe 5.

[0061] The third diagonal bracing pipe 7 is connected to the through beam 1, and the connection position of the third diagonal bracing pipe 7 is between the first diagonal bracing pipe 3 and the second diagonal bracing pipe 5. The structure of the through beam 1 is stable and the force is balanced, which is conducive to ensuring the torsional resistance performance of the reinforcement structure 100.

[0062] In some other embodiments, the reinforcement structure 100 includes a through beam 1, a first installation pipe 2 and a third installation pipe 6. The third installation pipe 6 may be referred to as the second installation pipe, and the first installation pipe 2 and the third installation pipe 6 are located on both sides of the through beam 1 along the second direction.

[0063] Exemplarily, the lengths of the first installation pipe 2, the second installation pipe 4 and the third installation pipe 6 along the second direction can be set according to requirements.

[0064] As Figure 4 shown, along the second direction, the first installation pipe 2 extends and protrudes from the first diagonal bracing pipe 3; the second installation pipe 4 and the third installation pipe 6 may also extend and protrude from the corresponding diagonal bracing pipes. In other words, there is a distance between the connection position of the diagonal bracing pipe and the end of the installation pipe, and neither of the two segments of the installation pipe divided by the connection position is too long. Each diagonal bracing pipe of the reinforcement structure 100 can effectively support the installation pipe and improve the strength of the installation pipe, and each installation pipe can be stably connected, supported and transmit force. Exemplarily, the angle range of the diagonal bracing pipe in the reinforcement structure 100 relative to the through beam 1 is 30° to 60°.

[0065] In some embodiments, the second mounting pipe 4 and the third mounting pipe 6 are two segments of the same profile, and the reinforcing structure 100 has high strength and good stability.

[0066] Exemplarily, the through beam 1 is an integral structure. In some other embodiments, the through beam 1 is a segmented connection structure. The through beam 1 may include a first segment 110 and a second segment 120. As Figure 2 shown, the first segment 110 and the second segment 120 may be deflected from each other in the YZ plane. Combining Figure 1 shown, the deflected state makes the middle part of the through beam 1 closer to the vehicle body 200. The through beam 1 has good torsional resistance and occupies a small space.

[0067] When the through beam 1 is an integral structure, the reinforcing structure 100 may be set as follows: any two connected pipe bodies 10 are connected in a manner that the pipe end is butt-jointed to the pipe side wall. In the reinforcing structure 100, the through beam 1 and other pipe bodies 10 are connected in a manner that the pipe end is butt-jointed to the pipe side wall or the pipe side wall is butt-jointed to the pipe end, and other pipe bodies 10 are connected in a manner that the pipe end is butt-jointed to the pipe side wall.

[0068] Specifically, the side wall of the first mounting pipe 2 is butt-jointed to the first end 101, and the side wall of the second mounting pipe 4 is butt-jointed to the second end 102. The two ends of the first diagonal brace pipe 3 are respectively connected to the side wall of the through beam 1 and the side wall of the first mounting pipe 2, and the two ends of the second diagonal brace pipe 5 are respectively connected to the side wall of the through beam 1 and the side wall of the second mounting pipe 4, and the connection strength of each component of the reinforcing structure 100 is good. Exemplarily, the second mounting pipe 4 and the third mounting pipe 6 are integrally connected to the second end 102.

[0069] Exemplarily, the first mounting pipe 2 includes two segments respectively protruding from the through beam 1, and the segment provided with the first diagonal brace pipe 3 is longer. The first mounting pipe 2 is longer, can maintain stability, and forms a structure with good rigidity with the through beam 1 and the first diagonal brace pipe 3. The through beam 1 can effectively resist torsion.

[0070] Refer to Figure 3 and Figure 5 , in some embodiments, the pipe body 10 is a square pipe, and the outer side surface of the square pipe is flat, which is easy to achieve external connection. Refer to Figure 3 , the pipe body 10 of the through beam 1 may include a first wall plate 11 and a second wall plate 12. The outer side wall of the first wall plate 11 in the through beam 1 may be a plane, and the first wall plate 11 can be used to connect the diagonal brace pipe. Refer to Figure 5 , exemplarily, in the pipe body 10 of the first mounting pipe 2, the first wall plate 11 is used to connect the through beam 1 or the first side portion 220. The surface of the pipe body 10 for connecting the vehicle body 200 may be a plane.

[0071] Refer to Figure 3 and Figure 5, two inner connecting plates 20 are respectively arranged along the diagonal of the square tube. The two inner connecting plates 20 form an X-shaped cross-sectional structure, which can effectively provide torsional resistance and has a high cost performance. In some other embodiments, there may be more inner connecting plates 20 in the pipe body 10.

[0072] Figure 3 The cross-section of the through beam 1 is shown; Figure 5 The cross-section of the first installation pipe 2 is shown. Similarly, the cross-sections of the first diagonal brace pipe 3, the second installation pipe 4, the second diagonal brace pipe 5, the third installation pipe 6 and the third diagonal brace pipe 7 can all be of the structure combining an X-shaped cross-section and a square tube. Each component of the reinforcement structure 100 has excellent axial torsional resistance, and the reinforcement structure 100 has high strength and good torsional resistance.

[0073] Optionally, as Figure 6 shown, the cross-section of the through beam 1 can have a field character structure, and the inner connecting plate 20 is connected inside the pipe body 10 along the second direction or the third direction. As Figure 7 shown, the cross-section of the through beam 1 can have a nine-square grid structure. Exemplarily, a rice-shaped structure can be arranged inside the pipe body 10.

[0074] As Figure 3 shown, the through beam 1 extends along the Y-axis direction, so that its cross-section along the XZ plane is the cross-section. The first dimension L1 of the through beam 1 along the Z-axis direction can be 40 mm, and the second dimension L2 along the X-axis direction can be 45 mm. The cross-sectional area of the through beam 1 can refer to the product of the first dimension L1 and the second dimension L2. As Figure 5 shown, the cross-section of the first installation pipe 2 in the YZ plane is the cross-section. The third dimension L3 of the first installation pipe 2 along the Z-axis direction can be 40 mm, and the fourth dimension L4 along the Y-axis direction can be 30 mm. Referring to Figure 3 and Figure 5 , in some embodiments, the cross-sectional area of the through beam 1 is larger than that of the first installation pipe 2. The through beam 1 serves as the main torque transmission path and has higher structural strength; the overall weight of the reinforcement structure 100 is lighter. The cross-sectional styles of the first diagonal brace pipe 3, the second installation pipe 4, the second diagonal brace pipe 5, the third installation pipe 6 and the third diagonal brace pipe 7 can be the same as that of the first installation pipe 2.

[0075] Exemplarily, the thickness range of the pipe body 10 or the inner connecting plate 20 is from 1 mm to 5 mm, for example, the thickness is 4.5 mm. This ensures the structural strength; in addition, it is also beneficial for welding

[0076] The first dimension L1 of the through beam 1 is the same as the third dimension L3 of the first installation pipe 2; combined with Figure 2As shown, the third direction is substantially parallel to the Z-axis direction. Along the third direction, the through beam 1 is flush with the first mounting pipe 2, facilitating the connection of the through beam 1 to the first mounting pipe 2. Exemplarily, along the third direction, the first mounting pipe 2, the first diagonal brace pipe 3, the second mounting pipe 4, the second diagonal brace pipe 5, the third mounting pipe 6, and the third diagonal brace pipe 7 have the same dimensions, and any two adjacent ones are flush along the third direction. Exemplarily, the cross-section at the first section 110 is the cross-section in its extending direction, and the cross-section at the second section 120 is also the cross-section in its extending direction.

[0077] In some embodiments, the through beam 1, the first mounting pipe 2, the first diagonal brace pipe 3, the second mounting pipe 4, and the second diagonal brace pipe 5 are all aluminum profiles. Exemplarily, the third mounting pipe 6 and the third diagonal brace pipe 7 are also aluminum profiles. The reinforcement structure 100 constructed of aluminum profiles is lightweight and can provide sufficient stiffness, and the performance of each part of the reinforcement structure 100 is relatively balanced. In addition, it is beneficial for the unified manufacturing of each component. Compared with the comparative example method of increasing cast aluminum parts in the same space to improve the torsional stiffness index of the vehicle body 200, the reinforcement structure 100 of the embodiment of the present disclosure has the advantages of higher process feasibility, lower cost, and higher cost performance. Exemplarily, the material of the aluminum profile is an aluminum alloy with a relatively high yield strength, such as 6005A, etc.

[0078] The reinforcement structure 100 of the embodiment of the present disclosure ensures the reuse part index of vehicle model development, and the relative modification amount is small. The reinforcement structure 100 is a retrofit part based on the vehicle body 200, and the assembly and disassembly are relatively convenient. The contribution of the reinforcement structure 100 to the torsional improvement of the vehicle body is relatively obvious, and the cost performance of the contribution to the vehicle body torsion is relatively high. Figures 1 to 5 The reinforcement structure 100 of the illustrated embodiment increases the torsional stiffness of the vehicle body 200 by about 1500 N·m / deg. The weight of the reinforcement structure 100 is 6193 g, and its cost performance is about 4.13 (g / N·m / deg).

[0079] Reference Figure 1 Referring to

[0080] The vehicle body 200 includes a bottom 210 and a first side portion 220 and a second side portion 230 connected to the bottom. The first side portion 220 and the second side portion 230 are spaced apart along the first direction. The first mounting pipe 2 of the reinforcement structure 100 is connected to the first side portion 220, and the second mounting pipe 4 is connected to the second side portion 230.

[0081] The body assembly 300 of the present disclosure embodiment has high torsional stiffness and does not require much change to the body 200. By setting the reinforcement structure 100 to improve the torsional stiffness, the cost performance of the body assembly 300 is high. By configuring the shapes of the cross-sections of the components, the weight of the body assembly 300 can be relatively light.

[0082] Exemplarily, the bottom 210 includes cross beams 211 and small longitudinal beams 212. The bottom 210 may include longitudinal beams or other sheet metal parts, etc. As Figure 1 shown, the small longitudinal beam 212 can be connected between two cross beams 211. The through beam 1 can be suspended relative to the bottom 210 or connected to the cross beam 211 or the small longitudinal beam 212.

[0083] Referring to Figure 8 , the present disclosure embodiment also provides an automobile 500, which includes the aforementioned body assembly 300. The automobile 500 has good performance under torsional conditions.

[0084] In some embodiments, the body assembly 300 is used to install the battery pack 400. The reinforcement structure 100 can be installed in front of or behind the battery pack 400 along the X-axis direction. By setting the reinforcement structure 100, the body assembly 300 has good torsional stiffness in the case of a relatively wide size. The automobile 500 is a new energy vehicle.

[0085] In some other embodiments, the body assembly 300 includes the battery pack 400.

[0086] The body assembly 300 is also used to install other accessories such as cables and pipelines. The reinforcement structure 100 is detachably connected to the body 200, which is beneficial to the installation and maintenance of various accessories.

[0087] The technical features of the above-disclosed embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0088] In the above-disclosed embodiments, unless otherwise clearly specified and limited, the execution order of each step is not limited. For example, it can be executed in parallel or in different orders successively. The sub-steps of each step can also be executed alternately. Various forms of processes can be used, and steps can also be reordered, added, or deleted, as long as the desired results of the technical solutions provided by the embodiments of the present disclosure can be achieved. This is not limited herein.

[0089] The embodiments disclosed above only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent protection scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the patent protection scope required by the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. A reinforcement structure, used to connect to a vehicle body, characterized in that: The reinforcement structure includes a through beam, a first mounting tube, a first diagonal bracing tube, a second mounting tube and a second diagonal bracing tube, wherein each of the through beam, the first mounting tube, the first diagonal bracing tube, the second mounting tube and the second diagonal bracing tube includes a tube body and at least two inner connecting plates intersecting each other and located in the tube body: The through beam has a first end and a second end facing each other along a first direction; The first mounting tube is located at the first end, and an extending direction of the first mounting tube intersects with the first direction; The first diagonal bracing tube is fixed to the through beam and to the first mounting tube; The second mounting tube is located at the second end, and an extending direction of the second mounting tube intersects with the first direction; The second diagonal bracing tube is fixed to the through beam and to the second mounting tube.

2. The reinforcement structure according to claim 1, characterized in that: The tube body is a square tube, and the at least two inner connecting plates include two inner connecting plates respectively arranged along the diagonal lines of the square tube.

3. The reinforcement structure according to claim 1, characterized in that: The through beam, the first mounting tube, the first diagonal bracing tube, the second mounting tube and the second diagonal bracing tube are all aluminum profiles.

4. The reinforcement structure according to claim 1, characterized in that: It also includes a third mounting tube and a third diagonal bracing tube, wherein each of the third mounting tube and the third diagonal bracing tube includes a tube body and at least two inner connecting plates intersecting each other and located in the tube body; The third mounting tube is located at the second end, the third mounting tube and the second mounting tube are located on both sides of the through beam along a second direction perpendicular to the first direction, and the third diagonal bracing tube is fixed to the through beam and to the third mounting tube.

5. The reinforcement structure according to claim 4, characterized in that: Of the third mounting tube and the second mounting tube, the second mounting tube and the first mounting tube are located on the same side of the through beam, and the third mounting tube is longer than the second mounting tube along the second direction; The third diagonal bracing tube is connected to the through beam, and a connection position of the third diagonal bracing tube is between the first diagonal bracing tube and the second diagonal bracing tube.

6. The reinforcement structure according to claim 4, characterized in that: The second mounting tube and the third mounting tube are two sections of the same profile, and the second mounting tube and / or the third mounting tube are detachably connected to the vehicle body through screw holes; The first mounting tube is detachably connected to the vehicle body through other screw holes.

7. The reinforcement structure according to any one of claims 1 to 6, characterized in that: The side wall of the first mounting tube is butted against the first end. The first mounting tube comprises two sections extending and protruding from the through beam respectively, and the section provided with the first diagonal bracing tube is longer. The side wall of the second mounting tube is butted against the second end.

8. The reinforcement structure according to claim 1, characterized in that: The cross-sectional area of ​​the through beam is larger than the cross-sectional area of ​​each of the first mounting tube, the first diagonal bracing tube, the second mounting tube and the second diagonal bracing tube; The first mounting tube and the second mounting tube both extend along a second direction perpendicular to the first direction; along a third direction perpendicular to the first direction and perpendicular to the second direction, the through beam, the first mounting tube, the first diagonal bracing tube, the second mounting tube and the second diagonal bracing tube have the same size and are flush.

9. A body assembly, characterized in that: include: A vehicle body, comprising a bottom portion and a first side portion and a second side portion connected to the bottom portion, wherein the first side portion and the second side portion are spaced apart along a first direction; as well as According to any one of claims 1 to 8, the first mounting tube is connected to the first side portion, and the second mounting tube is connected to the second side portion.

10. An automobile, characterized in that Comprising the vehicle body assembly as claimed in claim 9.

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